Quick answer
Key facts about black-tailed prairie dog — size, diet, habitat, and conservation in one place.
Keystone engineer
Prairie dog colonies increase plant diversity and provide burrows for dozens of species. Their clipping maintains short grass favoured by bison and pronghorn.
Complex alarm calls
Distinct calls warn of hawks versus coyotes, prompting different escape responses — jump to burrow or scan skyward. Some researchers describe this as a form of semantic communication.
Town structure
Colonies may span thousands of hectares with family coteries defending territories. Black-footed ferrets — North America's rarest mammal — depend entirely on prairie dog burrows and prey.
Historical persecution
Ranchers poisoned prairie dogs for decades, reducing colonies by over 95%. Reintroduction programmes for ferrets require large dog towns in Wyoming, Montana, and Arizona.